The 3 stripes on the Perak flag represent the 3 branches of the Perak royal family. The white stripe represents the Sultan, the yellow stripe represents the Raja Muda or Prince and the black stripe represents the Raja Di Hilir. In the Perak government, the Raja Muda will replace the Sultan and the Raja Di Hilir will replace the Raja Muda.

Giuseppe Bottasini, 13 August 1997

Flaggenbuch 1939 shows the national flag of Perak as horizontally white-yellow-black, similar to current one.

Yang Amat Mulia Raja Bendahara / His Highness the Prime Minister

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by Ivan Sache

The Neubecker 1992 facsimile of Flaggenbuch 1939, in the Corrections section, shows the flag of the Yang Amat Malia [sic] Raja Bendahara as the Sultan's flag, but with black field and thin yellow fimbriation between main field and canton.

Ivan Sache, 13 January 2000

Is the Raja Di Hilir the same as the Raja Bendahara? They appear to have the same flag, anyway.

Santiago Dotor, 28 December 2000

I think the Raja di Hilir is the second in line to the Perak throne, after the Raja Muda.

As far as I know this was not an official British flag. If there was any uniformity among the flags of the British Residents of the Malay States, it should have been the forked national flag. I wonder if Jaume Ollé's image arose from a misunderstood description, in which the field of the forked national flag was combined with a canton as the resident's flag was supposed to have had which was described as "of the national flag", and mistakenly thought to refer to the national flag of the Resident, not the national flag of the State.